参数资料
| 型号： | ISL8014IRZ |
| 厂商： | Intersil |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 16QFN |
| 产品培训模块： | ISL8013/4 Synchronous Buck Regulators |
| 标准包装： | 75 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-QFN（4x4） |
ISL8014
Absolute Maximum Ratings (Reference to GND)
VIN, VDD . . . . . . . . . . . . . . -0.3V to 6V (DC) or 7V (20ms)
EN, SYNCH, PG . . . . . . . . . . . . . . . . . . -0.3V to VIN + 0.3V
LX . . . -1.5V (100ns)/-0.3V (DC) to 6.5V (DC) or 7V (20ms)
VFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
Recommended Operating Conditions
Thermal Information
Thermal Resistance (Typical, Notes 4, 5) θ JA (°C/W) θ JC (°C/W)
16 Ld 4x4 QFN Package . . . . . . . 39 3
Junction Temperature Range . . . . . . . . . . -55°C to +125°C
Storage Temperature Range . . . . . . . . . . . -65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
VIN Supply Voltage Range . . . . . . . . . . . . . . . . 2.7V to 5.5V
Load Current Range . . . . . . . . . . . . . . . . . . . . . . . 0A to 4A
Ambient Temperature Range . . . . . . . . . . . . -40°C to +85°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact
product reliability and result in failures not covered by warranty.
NOTE:
4. θ JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach”
features. See Tech Brief TB379.
5. θ JC , “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
Unless otherwise noted, all parameter limits are established over the recommended
operating conditions and the typical specification are measured at the following conditions:
T A = -40°C to +85°C, V IN = 3.6V, EN = VDD, unless otherwise noted. Typical values are at
T A = +25°C. Boldface limits apply over the operating temperature range,
-40°C to +85°C.
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 7) TYP (Note 7)
UNITS
INPUT SUPPLY
V DD Undervoltage Lockout
Threshold
Quiescent Supply Current
V UVLO
I VIN
Rising, no load
Falling, no load
SYNCH = GND, no load at the output
SYNCH = GND, no load at the output
-
2.2
-
-
2.5
2.4
35
30
2.7
-
-
45
V
V
μA
μA
and no switches switching
SYNCH = VDD, F S = 1MHz, no load at
the output
-
6.5
10
mA
Shut Down Supply Current
I SD
V IN = 5.5V, EN = low
-
0.1
2
μA
OUTPUT REGULATION
Reference Voltage
V REF
0.790
0.8
0.810
V
VFB Bias Current
Line Regulation
Soft-Start Ramp Time Cycle
I VFB
VFB = 0.75V
V IN = V O + 0.5V to 5.5V (minimal 2.7V)
-
-
-
0.1
0.2
1
-
-
-
μA
%/V
ms
OVERCURRENT PROTECTION
Current Limit Blanking Time
Overcurrent and Auto Restart
Period
t OCON
t OCOFF
-
-
17
4
-
-
Clock pulses
SS cycle
Switch Current Limit
Peak Skip Limit
I LIMIT
I SKIP
(Note 6)
(Note 6)
4.9
-
6.0
1.3
7.1
-
A
A
COMPENSATION
Error Amplifier
-
20
-
μA/V
Trans-Conductance
Trans-Resistance
RT
0.17
0.20
0.23
Ω
4
FN6576.4
November 23, 2009
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